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TC2574-VOETR PDF预览

TC2574-VOETR

更新时间: 2024-09-09 14:45:07
品牌 Logo 应用领域
美国微芯 - MICROCHIP 开关光电二极管
页数 文件大小 规格书
26页 221K
描述
1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDSO16, WIDE, SOIC-16

TC2574-VOETR 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP16,.4针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.21
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
最大输入电压:40 V最小输入电压:7 V
标称输入电压:12 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:10.295 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:1.8 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP16,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:2.64 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:63 kHz
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:7.495 mmBase Number Matches:1

TC2574-VOETR 数据手册

 浏览型号TC2574-VOETR的Datasheet PDF文件第2页浏览型号TC2574-VOETR的Datasheet PDF文件第3页浏览型号TC2574-VOETR的Datasheet PDF文件第4页浏览型号TC2574-VOETR的Datasheet PDF文件第5页浏览型号TC2574-VOETR的Datasheet PDF文件第6页浏览型号TC2574-VOETR的Datasheet PDF文件第7页 
TC2574  
0.5A Step-Down Switching Regulator  
FEATURES  
GENERAL DESCRIPTION  
3.3V, 5.0V, 12V and Adjustable Output Versions  
Adjustable Version Output Voltage Range,  
1.23 to 37 V ±4% Max Over Line and Load Conditions  
Guaranteed 0.5 A Output Current  
Wide Input Voltage Range: 4.75 to 40V  
Requires Only 4 External Components  
52kHz Fixed Frequency Internal Oscillator  
TTL Shutdown Capability, Low Power Standby Mode  
High Efficiency  
The TC2574 series of regulators are monolithic inte-  
grated circuits ideally suited for easy and convenient design  
of a step-down switching regulator (buck converter). All  
circuits of this series are capable of driving a 0.5A load with  
excellent line and load regulation. These devices are avail-  
able in fixed output voltages of 3.3V, 5.0V, 12V and  
an adjustable output version.  
These regulators were designed to minimize the num-  
ber of external components to simplify the power supply  
design. Standard series of inductors optimized for use with  
the TC2574 are offered by several different inductor manu-  
facturers.  
Uses Readily Available Standard Inductors  
Thermal Shutdown and Current Limit Protection  
Since the TC2574 converter is a switch–mode power  
supply, its efficiency is significantly higher in comparison  
with popular three-terminal linear regulators, especially with  
higher input voltages. In most cases, the power dissipated  
by the TC2574 regulator is so low, that the copper traces on  
the printed circuit board are normally the only heatsink  
needed and no additional heatsinking is required.  
The TC2574 features include a guaranteed ±4% toler-  
ance on output voltage within specified input voltages and  
outputloadconditions,and±10%ontheoscillatorfrequency  
(±2% over 0°C to +125°C). External shutdown is included,  
featuring 60µA (typical) standby current. The output switch  
includes cycle–by–cycle current limiting, as well as thermal  
shutdown for full protection under fault conditions.  
APPLICATIONS  
Simple and High–Efficiency Step–Down (Buck)  
Regulator  
Efficient Pre-Regulator for Linear Regulators  
On–Card Switching Regulators  
Positive to Negative Converters (Buck–Boost)  
Negative Step-Up Converters  
Power Supply for Battery Chargers  
PIN CONFIGURATIONS  
16-Pin SOIC (Wide)  
NC  
NC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
NC  
NC  
ORDERING INFORMATION  
Part  
Temperature  
Range  
FB  
SIG GND  
ON/OFF  
OUTPUT  
NC  
Number  
Package  
TC2574  
TC2574-3.3VPA  
TC2574-5.0VPA  
8-Pin PDIP (Narrow) –40 to +125°C  
8-Pin PDIP (Narrow) –40 to +125°C  
12 V  
IN  
PWR GND  
NC  
NC  
NC  
11  
10  
9
TC2574-12.0VPA 8-Pin PDIP (Narrow) –40 to +125°C  
TC2574-VPA*  
TC2574-VOE*  
8-Pin PDIP (Narrow) –40 to +125°C  
16-Pin SOIC (Wide) –40 to +125°C  
NC  
NC  
Note: *ADJ = 1.23 To 37V.  
8-Pin PDIP (Narrow)  
FB  
8
NC  
1
7
SIG GND  
ON/OFF  
OUTPUT  
NC  
2
3
4
TC2574  
6
V
5
PWR GND  
IN  
© 2001 Microchip Technology Inc. DS21397A  
TC2574-2 12/22/00  

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